Ai Mi went to the store to buy some chicken. The price per pound of the chicken is $3.50 per pound and she has a coupon for $2.5
0 off the final amount. With the coupon, how much would Ai Mi have to pay to buy 3 pounds of chicken? Also, write an expression for the cost to buy pp pounds of chicken, assuming at least one pound is purchased.
Use the x and y values from your point and the h and k from the center to write the equation you need to solve for r. The general form of the equation for a circle is . We will fill in accordingly: . Solve for r to get that
. We will fill in accordingly: 
. Solve for r to get that 